Juno development, launch, and cruise, Including Earth flyby imaging Oct 9 2013 |
Juno development, launch, and cruise, Including Earth flyby imaging Oct 9 2013 |
Apr 3 2006, 09:57 PM
Post
#1
|
|
Member Group: Members Posts: 172 Joined: 17-March 06 Member No.: 709 |
I thought that it was time to start a new thread devoted to the JUNO Jupiter
Orbiter mission. This New Frontiers Mission #2 seems to be a "stealth" project with little information available on the Web. In fact, the official NASA JUNO web site is quite pitiful. It contains the minimal amount of information on what seems to be an intriguing mission, in terms of both science and engineering. Does the UMSF community have information on this mission that has not been widely seen before? Another Phil |
|
|
Mar 15 2007, 08:31 AM
Post
#2
|
|
Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
I'm an images type of guy, but with 20-20 hindsight, I think the experiments were a tossup. A Mariner 4 type camera -- IF -- it could have taken full disk and quarter-disk photos might have given them a good first clue on the atmospheeric circulation, but a Mariner 4 type, kilometers resolution, single-image-swath across the disk would have been nearly useless.
Occultation was a completely new technique that had been tested once with spectacular results but was still underdeveloped. The Stanford experiment turned out to be rather redundant, but it was a learning experience. And it gave confidence in the overall occultation results. Combined with the Venera-4 descent data (till it was crushed at about 25 atmospheres pressure), and an (at the time debated) correction to the Venera radar altimetry point, it fixed the radius of the planet and determined the probably atmosphere surface pressure and temperature. With 20-20 hindsight, what ***I*** would have carried on Mariner 5 was a simple but scanned infrared radiometer. Similar to that on Mariner 6/7, 9 and 10 but with an internal stepper to scan a crude raster across the planet. Mariner 2 saw, in it's very limited zig-zag pass of the IR radiometer field of view (boresighted with the microwave radiometer), depressed temperatures at the now known location of the polar high-altitude ring-cloud that surrounds the double-vortex. They would have seen that and maybe other interesting structures, though in 10-20 micrometer IR, you don't see the atmosphere windows to under the clouds. |
|
|
Lo-Fi Version | Time is now: 26th September 2024 - 10:15 AM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |